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Table 1 Comparison of patient demographics and visit characteristics before and after the policy change

From: Measuring impact of a quality improvement initiative on glaucoma clinic flow using an automated real-time locating system

 

Before Policy Change

(n = 1031 visits, 928 patients, 58 days)

After Policy Change

(n = 941 visits, 841 patients, 65 days)

 

Continuous Variable

Mean (SD)

Min, Max

Median

Mean (SD)

Min, Max

Median

P-value*

Age (year)

65.6 (15.1)

15.9, 102.5

67.2

66.3 (14.1)

13.9, 97.5

68.5

0.33

Daily patient Volume

51.9 (16.8)

5, 88

52

58.4 (17.4)

17, 95

61

0.04

Categorical Variable

frequency (%)

frequency (%)

P-value**

Gender

 Male

400 (43.1)

379 (45.1)

0.39

 Female

528 (56.9)

461 (54.9)

Race

 White

700 (76.7)

674 (81.3)

0.02

 Black

117 (12.8)

102 (12.3)

 Asian

75 (8.2)

41 (5.0)

 Other

21 (2.3)

12 (1.5)

Ethnicity

 Hispanic

21 (2.5)

14 (1.9)

0.36

 Non-Hispanic

807 (97.5)

739 (98.1)

Appt Type

 New Patient

94 (9.1)

93 (9.9)

0.69

 Return Visit

498 (48.3)

431 (45.8)

 Visual Field

314 (30.5)

284 (30.2)

 Post-op Visit

84 (8.2)

84 (8.9)

 Laser Treatment

39 (3.8)

44 (4.7)

 Urgent

2 (0.2)

3 (0.3)

Appt Time

 AM

577 (56.0)

601 (63.9)

0.0004

 PM

454 (44.0)

340 (36.1)

Appt Day

 Monday

171 (16.6)

114 (12.1)

0.003

 Tuesday

276 (26.8)

269 (28.6)

 Wednesday

175 (17.0)

211 (22.4)

 Thursday

199 (19.3)

161 (17.1)

 Friday

210 (20.4)

186 (19.8)

  1. Abbreviations: SD Standard deviation, Min Minimum, Max Maximum, Appt Appointment
  2. *2-sample t-test
  3. **Chi-square test or Fisher’s exact test (when cell counts < 5)